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code_allowed is a real mess. Start the cleanup by remving the account level code allow and limiting to specific channels only. This reduces the possibility of cross channel security issues coming into play. Then provide a single function for checking the code permission. This is only partially done as we often need to check against the observer or logged in channel as well as the resource owner to ensure that this only returns true for local channels which also own the requested resource.

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This commit is contained in:
zotlabs 2017-03-13 16:19:47 -07:00 committed by Mario Vavti
parent 107083e3e4
commit 0f7832dc30
7 changed files with 28 additions and 78 deletions
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14
Zotlabs/Module/Impel.php
View file

@ -144,18 +144,8 @@ class Impel extends \Zotlabs\Web\Controller {
// Verify ability to use html or php!!!
$execflag = false;
if($arr['mimetype'] === 'application/x-php') {
$z = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1",
intval(local_channel())
);
if($z && (($z[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($z[0]['channel_pageflags'] & PAGE_ALLOWCODE))) {
$execflag = true;
}
}
$execflag = ((intval($channel['channel_id']) == intval(local_channel()) && ($channel['channel_pageflags'] & PAGE_ALLOWCODE)) ? true : false);
$i = q("select id, edited, item_deleted from item where mid = '%s' and uid = %d limit 1",
dbesc($arr['mid']),
intval(local_channel())

13
Zotlabs/Module/Item.php
View file

@ -478,17 +478,8 @@ class Item extends \Zotlabs\Web\Controller {
// Verify ability to use html or php!!!
$execflag = false;
$z = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1",
intval($profile_uid)
);
if($z && (($z[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($z[0]['channel_pageflags'] & PAGE_ALLOWCODE))) {
if($uid && (get_account_id() == $z[0]['account_id'])) {
$execflag = true;
}
}
$execflag = ((intval($channel['channel_id']) == intval($profile_uid) && ($channel['channel_pageflags'] & PAGE_ALLOWCODE)) ? true : false);
$gacl = $acl->get();
$str_contact_allow = $gacl['allow_cid'];
$str_group_allow = $gacl['allow_gid'];

1
boot.php
View file

@ -549,7 +549,6 @@ define ( 'ACCOUNT_PENDING', 0x0010 );
* Account roles
*/
define ( 'ACCOUNT_ROLE_ALLOWCODE', 0x0001 );
define ( 'ACCOUNT_ROLE_SYSTEM', 0x0002 );
define ( 'ACCOUNT_ROLE_DEVELOPER', 0x0004 );
define ( 'ACCOUNT_ROLE_ADMIN', 0x1000 );

1
doc/database/db_account.bb
View file

@ -58,7 +58,6 @@ define ( 'ACCOUNT_PENDING', 0x0010 );
* Account roles
*/
define ( 'ACCOUNT_ROLE_ALLOWCODE', 0x0001 ); // 1 - this account can create content with PHP/Javascript
define ( 'ACCOUNT_ROLE_SYSTEM', 0x0002 ); // 2 - this is the special system account
define ( 'ACCOUNT_ROLE_DEVELOPER', 0x0004 );
define ( 'ACCOUNT_ROLE_ADMIN', 0x1000 ); // 4096 - this account is an administrator

17
include/channel.php
View file

@ -2247,3 +2247,20 @@ function channel_remove($channel_id, $local = true, $unset_session=false) {
}
}
/*
* This checks if a channel is allowed to publish executable code.
* It is up to the caller to determine if the observer or local_channel
* is in fact the resource owner whose channel_id is being checked
*/
function channel_codeallowed($channel_id) {
if(! intval($channel_id))
return false;
$x = channelx_by_n($channel_id);
if(($x) && ($x['channel_pageflags'] & PAGE_ALLOWCODE))
return true;
return false;
}

34
include/import.php
View file

@ -528,16 +528,8 @@ function sync_chatrooms($channel,$chatrooms) {
function import_items($channel,$items,$sync = false,$relocate = null) {
if($channel && $items) {
$allow_code = false;
$r = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id
where channel_id = %d limit 1",
intval($channel['channel_id'])
);
if($r) {
if(($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
$allow_code = true;
}
}
$allow_code = channel_codeallowed($channel['channel_id']);
$deliver = false; // Don't deliver any messages or notifications when importing
@ -1352,28 +1344,8 @@ function import_webpage_element($element, $channel, $type) {
}
// Verify ability to use html or php!!!
$execflag = false;
if($arr['mimetype'] === 'application/x-php' || $arr['mimetype'] === 'text/html') {
$z = q("select account_id, account_roles, channel_pageflags from account "
. "left join channel on channel_account_id = account_id where channel_id = %d limit 1",
intval(local_channel())
);
if($z && (($z[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($z[0]['channel_pageflags'] & PAGE_ALLOWCODE))) {
$execflag = true;
}
else {
logger('Unable to import element "' . $name .'" because AllowCode permission is denied.');
notice( t('Unable to import element "' . $name .'" because AllowCode permission is denied.') . EOL);
$element['import_success'] = 0;
return $element;
}
}
// $z = q("select * from iconfig where v = '%s' and k = '%s' and cat = 'system' limit 1",
// dbesc($name),
// dbesc($namespace)
// );
$execflag = channel_codeallowed(local_channel());
$i = q("select id, edited, item_deleted from item where mid = '%s' and uid = %d limit 1",
dbesc($arr['mid']),

26
include/text.php
View file

@ -104,15 +104,11 @@ function z_input_filter($channel_id,$s,$type = 'text/bbcode') {
return $s;
}
$r = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1",
$r = q("select channel_pageflags from channel where channel_id = %d limit 1",
intval($channel_id)
);
if($r) {
if(($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
if(local_channel() && (get_account_id() == $r[0]['account_id'])) {
return $s;
}
}
if(($r) && (local_channel() == $channel_id) && ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
return $s;
}
if($type === 'text/html')
@ -1812,23 +1808,9 @@ function mimetype_select($channel_id, $current = 'text/bbcode') {
);
if(App::$is_sys) {
if((App::$is_sys) || (channel_codeallowed($channel_id) && $channel_id == local_channel())){
$x[] = 'application/x-php';
}
else {
$r = q("select account_id, account_roles, channel_pageflags from account left join channel on account_id = channel_account_id where
channel_id = %d limit 1",
intval($channel_id)
);
if($r) {
if(($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
if(local_channel() && get_account_id() == $r[0]['account_id']) {
$x[] = 'application/x-php';
}
}
}
}
foreach($x as $y) {
$selected = (($y == $current) ? ' selected="selected" ' : '');